[Bug 204378] xhci fails on Cavium ThunderX

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sun Nov 8 18:56:27 UTC 2015 

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204378

            Bug ID: 204378
           Summary: xhci fails on Cavium ThunderX
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: arm64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: emaste at freebsd.org

ThunderX XHCI requires MSI

I tried booting with:

hw.usb.xhci.use_polling=0
hw.usb.xhci.debug=255

and I see:

xhci0: <Cavium ThunderX USB 3.0 controller> mem
0x868000000000-0x8680001fffff,0x868000200000-0x8680002fffff at device 16.0 on
pci0^M
xhci_init: ^M
xhci_init: CAPLENGTH=0x20^M
xhci_init: RUNTIMEOFFSET=0x440^M
xhci_init: DOOROFFSET=0x480^M
xhci_init: xHCI version = 0x0100^M
xhci_init: HCS0 = 0x0220f665^M
xhci0: 64 bytes context size, 64-bit DMA^M
xhci_init: Max slots: 64^M
xhci_init: HCS2=0x0c0000f1^M
xhci_init: Max scratch: 1^M
xhci0: Could not allocate IRQ^M
xhci_halt_controller: ^M
device_attach: xhci0 attach returned 6^M
xhci0: <Cavium ThunderX USB 3.0 controller> mem
0x869000000000-0x8690001fffff,0x869000200000-0x8690002fffff at device 17.0 on
pci0^M
xhci_init: ^M
xhci_init: CAPLENGTH=0x20^M
xhci_init: RUNTIMEOFFSET=0x440^M
xhci_init: DOOROFFSET=0x480^M
xhci_init: xHCI version = 0x0100^M
xhci_init: HCS0 = 0x0220f665^M
xhci0: 64 bytes context size, 64-bit DMA^M
xhci_init: Max slots: 64^M
xhci_init: HCS2=0x0c0000f1^M
xhci_init: Max scratch: 1^M
xhci0: Could not allocate IRQ^M
xhci_halt_controller: ^M
device_attach: xhci0 attach returned 6^M

I tried booting with xhci polling:

set hw.usb.xhci.use_polling=1
set hw.usb.xhci.debug=255

and I see:

xhci0: <Cavium ThunderX USB 3.0 controller> mem
0x868000000000-0x8680001fffff,0x868000200000-0x8680002fffff at device 16.0 on
pci0^M
xhci_init: ^M
xhci_init: CAPLENGTH=0x20^M
xhci_init: RUNTIMEOFFSET=0x440^M
xhci_init: DOOROFFSET=0x480^M
xhci_init: xHCI version = 0x0100^M
xhci_init: HCS0 = 0x0220f665^M
xhci0: 64 bytes context size, 64-bit DMA^M
xhci_init: Max slots: 64^M
xhci_init: HCS2=0x0c0000f1^M
xhci_init: Max scratch: 1^M
xhci0: Could not allocate IRQ^M
xhci0: Interrupt polling at 1000Hz^M
xhci_interrupt: real interrupt (status=0x00000001)^M
xhci_interrupt: host controller halted^M
xhci_halt_controller: ^M
xhci_start_controller: ^M
xhci_start_controller: CONFIG=0x00000000 -> 0x00000040^M
xhci_start_controller: ERSTSZ=0x00000000 -> 0x00000001^M
xhci_start_controller: ERDP(0)=0x0000000007600080^M
xhci_start_controller: ERSTBA(0)=0x0000000007600000^M
xhci_start_controller: CRCR=0x0000000007600d80^M
usbus0 on xhci0^M
xhci0: usbpf: Attached^M
random: harvesting attach, 8 bytes (4 bits) from usbus0^M
random: harvesting attach, 8 bytes (4 bits) from xhci0^M
xhci1: <Cavium ThunderX USB 3.0 controller> mem
0x869000000000-0x8690001fffff,0x869000200000-0x8690002fffff at device 17.0 on
pci0^M
xhci_init: ^M
xhci_init: CAPLENGTH=0x20^M
xhci_init: RUNTIMEOFFSET=0x440^M
xhci_init: DOOROFFSET=0x480^M
xhci_init: xHCI version = 0x0100^M
xhci_init: HCS0 = 0x0220f665^M
xhci1: 64 bytes context size, 64-bit DMA^M
xhci_init: Max slots: 64^M
xhci_init: HCS2=0x0c0000f1^M
xhci_init: Max scratch: 1^M
xhci1: Could not allocate IRQ^M
xhci1: Interrupt polling at 1000Hz^M
xhci_interrupt: real interrupt (status=0x00000001)^M
xhci_interrupt: host controller halted^M
xhci_halt_controller: ^M
xhci_start_controller: ^M
xhci_start_controller: CONFIG=0x00000000 -> 0x00000040^M
xhci_start_controller: ERSTSZ=0x00000000 -> 0x00000001^M
xhci_start_controller: ERDP(0)=0x00000000066cd080^M
xhci_start_controller: ERSTBA(0)=0x00000000066cd000^M
xhci_start_controller: CRCR=0x00000000066cdd80^M
usbus1 on xhci1^M
xhci1: usbpf: Attached^M
random: harvesting attach, 8 bytes (4 bits) from usbus1^M
random: harvesting attach, 8 bytes (4 bits) from xhci1^M

and then every few seconds:

xhci_set_hw_power: 
xhci_set_hw_power: 
xhci_set_hw_power: 
xhci_set_hw_power: 
xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000
wIndex=0x0001
xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000
wIndex=0x0001
xhci_roothub_exec: UR_GET_STATUS i=1
xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000
wIndex=0x0001
xhci_roothub_exec: port status=0x000002a0
xhci_roothub_exec: UR_GET_STATUS i=1
xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000
wIndex=0x0002
xhci_roothub_exec: port status=0x000002a0
xhci_roothub_exec: UR_GET_STATUS i=2
xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000
wIndex=0x0002
xhci_roothub_exec: port status=0x000002a0
xhci_roothub_exec: UR_GET_STATUS i=2
xhci_roothub_exec: UR_GET_STATUS i=1
xhci_roothub_exec: port status=0x000002a0
xhci_roothub_exec: port status=0x000002a0
xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000
wIndex=0x0001
xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000
wIndex=0x0002
xhci_roothub_exec: UR_GET_STATUS i=1
xhci_roothub_exec: UR_GET_STATUS i=2
xhci_roothub_exec: port status=0x000002a0
xhci_roothub_exec: port status=0x000002a0
xhci_roothub_exec: type=0xa3 request=0x00 wLen=0x0004 wValue=0x0000
wIndex=0x0002
xhci_roothub_exec: UR_GET_STATUS i=2
xhci_roothub_exec: port status=0x000002a0



pciconf -lvc shows:

none1 at pci0:0:16:0:      class=0x0c0330 card=0xa11b177d chip=0xa01b177d rev=0x01
hdr=0x00
    vendor     = 'Cavium, Inc.'
    device     = 'THUNDERX xHCI USB Controller'
    class      = serial bus
    subclass   = USB
    cap 10[70] = PCI-Express 2 endpoint max data 128(128) link x0(x0)
    cap 11[b0] = MSI-X supports 4 messages
                 Table in map 0x20[0x0], PBA in map 0x20[0xf0000]
    ecap 000e[100] = ARI 1
    ecap 000b[108] = Vendor 1 ID 160
none2 at pci0:0:17:0:      class=0x0c0330 card=0xa11b177d chip=0xa01b177d rev=0x01
hdr=0x00
    vendor     = 'Cavium, Inc.'
    device     = 'THUNDERX xHCI USB Controller'
    class      = serial bus
    subclass   = USB
    cap 10[70] = PCI-Express 2 endpoint max data 128(128) link x0(x0)
    cap 11[b0] = MSI-X supports 4 messages
                 Table in map 0x20[0x0], PBA in map 0x20[0xf0000]
    ecap 000e[100] = ARI 1
    ecap 000b[108] = Vendor 1 ID 160

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